Interaction of 1-allyl-3-methyl-imidazolium chloride and carbon black and its influence on carbon black filled rubbers

• Published in: Carbon (New York) Vol. 50; no. 10; pp. 3649 - 3658
• Main Authors: Kreyenschulte, Hermann, Richter, Sven, Götze, Thomas, Fischer, Dieter, Steinhauser, Dagmar, Klüppel, Manfred, Heinrich, Gert
• Format: Journal Article
• Language: English
• Published: Kidlington Elsevier Ltd 01.08.2012; Elsevier
• Subjects: Carbon; Carbon black; Chlorides; Cross-disciplinary physics: materials science; rheology; Electrical properties; Exact sciences and technology; Fullerenes and related materials; diamonds, graphite; Ionic liquids; Materials science; Physics; Raman spectroscopy; Rubber; Specific materials; Surface chemistry; Differential scanning calorimetry; Transition temperature; Adsorption energy; Carbon black; Attraction interaction; Methyl chloride; Electrical properties; Strong interactions; Crystals; Mechanical properties; Surface treatments; Raman spectroscopy; Ionic liquid; Glass transition; Rubbers; Polymers
• ISSN: 0008-6223; 1873-3891
• DOI: 10.1016/j.carbon.2012.03.037

The interactions of the ionic liquid 1-allyl-3-methyl-imidazolium chloride (AMIMCl) with different grades of carbon black have been investigated using rheological measurements, differential scanning calorimetry and Raman spectroscopy. We could prove strong attractive interactions of AMIMCl with the carbon black surface, which result, for example, in the formation of an AMIMCl–carbon black–bucky gel and in an increased glass transition temperature of the ionic liquid in the presence of carbon black. Raman spectroscopy revealed that the AMIMCl is preferably attached to the edges of graphitic crystals at the carbon black surface, which have the highest adsorption energies. A surface treatment of different grades of carbon black with AMIMCl led to significant changes of the mechanical and electrical properties of different rubber compounds filled with carbon black, which can be attributed to a decreased filler–polymer interaction and a local plasticising effect of the AMIMCl at the carbon black surface.